Check-row attachment



(NuModeL) L. SGOPIELD.

CHECK ROW ATTACHMENT.

No. 388,077. Patented Aug. 21, 1888.

Witn sses. zuvenozz N. PETERS, Pholo-Lilhogmphnr, Washmmnn u. c.

UNTTED STATES PATENT Orrrcs.

LEVI SCOFIELD, OF GRAND HAVEN, MICHIGAN.

CHECK-ROW ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 388,077, dated August21, 1888.

(No model .To all whom, it may concern.-

Be it known that I, Lnvr ScoFIELn, of Grand Haven, in the county ofOttawa and State of Michigan, have invented certain new and usefulImprovements in Check-Row Attachments; and I dohereby declare thefollowing to be afull, clear, and exact description of the same,reference being had to the accompanying drawings,forming a part of thisspecification, and to the figures and letters of reference markedthereon.

This invention relates to that class of checkrow planters in which theactuating devices, or those through which motion is communicateddirectly to the feeding devices or seedbar, are located centrally of themachine or between the two mechanisms for engaging the check-row cord orwire 011 either side of the machine; and said invention consists,primarily, in the novel construction, arrangement, and combination, withthe crank, of a single pivoted bar or link engaging the crank-pin andtransmitting motion therefrom to the seed bar, all as hereinafter morefully described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in perspective of aportion of a checkrow attachment,illustrating the application of myinvention. Fig. 2 is a top plan view, and Fig. 3 a front elevation, of aportion of a check-row attachment with my improvements applied thereto.Fig. 4 is a view in perspective of the sectional stops.

Similar letters of reference in the several figures indicate the sameparts.

Of the mcchanismshown,A is the cross bar, upon which the several devicesconstituting the check-row attachment are mounted. B is the slide-barfor actuating the feeding mechanism. O is the shaft intcrmittinglyrotated by suitable devices applied thereto in position to be actuatedat intervals by the check-row cord or wire. D is a gear-wheel on shaft0; and E is a gear-wheel supported upon a bracket, E, and carrying thecrank pin E", made adjustable to accommodate the throw of differentplanters. These several parts, which are herein referred to merely forthe purpose of illustrating the present invention,are constructed andarranged in any wellknown manner for conjoint operation, and

hence are to be regarded as preferred forms only of the partsormechanisms represented.

Between the crank-pin E and slide'bar B, and in lieu of the more or lesscomplex devices heretofore employed in this class ofcheck-rowattachments, I interpose a single lever or connccting-bar, I, pivotallysupported, as at 2, and provided with a furcated end, 3, embrac ing thecrank-pin, and an arm, 4,working between and engaging stops 5 on theseed-bar. In its preferred form the lever I is pivotally attached to adependent portion, 6, of the bracket E, supporting the crank-gear E by abolt, 7, passing through an eye or socket at or near the center of thelever and beneath the cross-bar A. From one end of said socket and inrear of the crossbar A rises an arm, 8, whose upper end is furnishedwith two bars or prongs, 9, standing substantially parallel with thefulcrum-pin and projecting laterally across the face of the crank shaftor wheel E.

As is usual in this class of machines, the crank is given a semirotationupon the passage of each knot 011 the check-row cord, and is then heldin position until the next succeeding knot is reached, and at eachsemi-rotation of the crank the feeding devices are actuated by andthrough the medium of the slide-bar B. It is essential, therefore, thatthe movements imparted to the slidc-bar in opposite directions should bethe same, to accomplish which it is necessary that the crankpin shouldact equally upon or through the connecting devices at each semirotation. This result is accomplished by supporting the lever 1 on anaxis or fulcrum-pin in line with but transverse to the axis about whichthe crankpin revolves, with the bearings 9 in the end projected acrossthe face of the crank shaft or gear E, so that the lever I will, as thecrank revolves, be reciprocated equally on opposite sides of thecrank-shaft, the extremes of movement in opposite directions beingreached when the crank-pin stands at right angles to a plane drawnthrough the crank-shaft and fulcrum of lever I; hence the detent orbrake for retaining the drivingshaft 0 in position is so arranged andapplied that it will hold the crank-pin at this point when the actuatingdevices are at rest. Thus the crank is caused to operate positively uponthe slide-bar and through a single member or lever, I, and the throw ofthe slide-bar in opposite directions is equal, so that the feedingdeviceswill always be operated at intervals corresponding with thespaces between the knots of the check-row cord.

The bracket E, on which the lever I is pivoted, is secured to thecross-bar A and provided with a bearing for shaft 0, and with a stud orpin, f, to receive the wheel E, carrying the crank-pin,whereby the crankand lever I are rigidly connected andheld in the proper relativeposition, and at the same time a support is provided for the shaft.

The lower end of lever I carries a transverse pin or stud, 4, which,when the attachment is in position, stands between the two adjustablechecks or stops 11, secured to the slidebar. These stop-pieces 11, aswell as the pin 4, are made of sufficient length to provide for thedesired latitude of adjustment of the one with respect to the other,and, to facilitate the application of the said stops 11 to the seedbarand the adjustment longitudinally of said bar, they are each constructedas shown in Fig. 4.

Both sections are provided with flanges or grooved portions 12 aroundthe edges of the bar B,while the principal section, or that to which thepin or hearing 11 is attached, rests upon and stands across the upperface of said bar in rear of the said pin or bearing.

The two sections are united and clamped firmly in position by a bolt,13,while each section is furnished with one or more'lugs, 14, entering arecess, 15, in the opposite section, to hold and lock the two sectionswith their flanges or grooves substantially parallel, so that byloosening the clamping-bolt the bearings 11 can be slid upon the bar B,without becoming separated or being detached therefrom.

Having thus described my invention, what I claim as new is- 1. In acorn-planter andin combination with the crank and its actuating devices,the lever interposed between said crank and the slide controlling thefeeding devices, said bar being supported upon a pivot in line with buttrans verse to the axis of the crank, and provided with a slotted orfurcated end projected across the face of the crank disk or wheel,substantially as described.

2. In a checkrow attachment such as described, the combination,with theshaft 0 and centrallyarranged gears and crank, of the lever slotted orfurcated for the reception of the crank-pin, and supported upon atransverse pivot in line with the axis of the crank but below thelatter, said lever being also provided with a transverse pin or bearingprojected between the cheeks or bearings on the slide'bar, substantiallyas described.

3. In a check-row attachment such as described, the combination, withthe crank and actuating devices for intermittingly rotating the former,of a lever pivotally attached to the bracket supporting the crank on acenter in line with and transverse to the axis of the crank, said leverbeing provided on one end with a furcated portion projected across theface of the crank and embracing the crank-pin, and at the other with atransverse pin for engaging stops on the slide-bar, substantially asdescribed.

4. In a check-row attachment such as described, the combination, withthe bracket secured to the cross-bar A and supporting the crank abovesaid bar, of the lever pivotally attached to said bracket beneath thebar A and provided with two arms, the one carrying the pin for operatingthe feeding devices depending beneath the supporting-bar A, and theother extending across said bar A and provided with a furcated orslotted portion engaging the crank-pin, substantially as described.

5. In a check-row attachment wherein the operating-crank is arranged andsupported at or near the middle of the cross-bar A, and is driven from ashaft, 0, through gears, substantially as described, the combination,with said crank and the actuating devices therefor, of the lever I,pivoted beneath the barA in line with the axis of the crank, andprovided with the furcated end 3, for the reception of the crank-pin,and the pin or stud 4, for engaging the stops 11 on the slide-bar, asand for the purpose set forth.

6. The improved sectional stops or bearings 11, for application to theslide-bar B, constructed, substantially as described, in two sections,one formed with the recess therein and the other with the wings orflanges for entering said recess on either side of the bolt, and bothprovided with the depending flanges grooved for the reception of theedges of the bar B, and a clamping-bolt engaging the sections to drawthem together and clamp their flanges upon the bar B, substantially asdescribed.

7. The improved adjustable and removable stops 11, formed in twosections, each provided with flanges or grooved portions fitting theedges of the bar B, and interlocking projections, one of said sectionscarrying the hearing or stop-pin and provided with an extended bearingon the top of bar B, in rear of said stop-pin, and a bolt engaging bothsections to hold them together and clamp them upon the bar B,substantially as described.

LEVI SGOFIELD.

Witnesses:

E. G. BELL, W. O. SHELDON, Jr.

